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| clide |
 Posted: 04/20/2007 14:17 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
Posts: 721
2078.95 Spud Bux
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The limiting factor is my air supply. I built a high flow check valve into the piston and the 3-way exhaust valve has a high flow through it to minimize filling times, so if I had a high enough flow air source I could probably get a significantly faster ROF.
The video misrepresents the sound. It sounds like it is getting a lot quitter and having troubles, but I think that is just an auto sound dampening on the camcorder kicking in. Its been awhile since I fired it, but I'm pretty sure it sounds more consistent throughout all the shots in real life. I don't think I would start having any issues until below 30 psi, but I never even really bothered to try it that low. |
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| bboymatty |
| Posted: 04/23/2007 6:29 AM Post subject: |
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Staff Sergeant
Joined: 19 Feb 2006
Posts: 110
219.10 Spud Bux
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| what a fantastic design, absolutely love it to bits. great work. |
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| ALIHISGREAT |
| Posted: 09/07/2007 14:23 PM Post subject: |
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Eternal Noob
Joined: 25 Aug 2007
Posts: 1290
976.11 Spud Bux
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| awesome cannon, i like the fact you have made the valve AND pilot yourself and they are a cool design. |
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| The Kid |
| Posted: 09/29/2007 8:47 AM Post subject: |
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Staff Sergeant
Joined: 29 Sep 2007
Posts: 117
206.15 Spud Bux
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| that cannon is a work of art i never would have thought of anything like that (in fact i never think of anything i am very unoriginal) |
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| Gepard |
| Posted: 09/29/2007 8:49 AM Post subject: |
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Major
Joined: 18 Jun 2007
Posts: 352
727.71 Spud Bux
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| Please stop posting to old topics unless you have something useful to add. |
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| Hailfire753 |
| Posted: 10/06/2007 12:34 PM Post subject: |
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Captain
Joined: 28 Jun 2007
Posts: 322
2.90 Spud Bux
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Ok, well I hope this is useful...
If I were to modify these designs to fit in a sniper-rifle esque design, I would want to use it in a painball match. How would I adjust the fps the gun pounds out? Would I increase the spring tension of the loading mech, or decrease the chamber pressure?
I would want to use regulated C02, how much would it cost for an ajustable regulator and hook up? (quick disconect)
Also, with your RoF, if you pressed the trigger faster why wouldn't it increase? If there is less time in between shots, wouldn't the chamber psi only be less? As long as the loading mech supplies panitballs fast enough, wouldn't it still shoot?
Last edited by Hailfire753 on 10/06/2007 12:37 PM; edited 1 time in total |
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| VH_man |
| Posted: 10/06/2007 12:37 PM Post subject: |
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Swimmaman
Joined: 09 Dec 2006
Posts: 1497
82.56 Spud Bux
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| you would decrease the chamber pressure....... |
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| clide |
| Posted: 10/06/2007 15:17 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
Posts: 721
2078.95 Spud Bux
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| Yes, as VH said you would just decrease the chamber pressure to reduce the speed. Also, yes my gun was limited in ROF by the fill speed and also a bit by the fact that the trigger pull is relatively long. I probably couldn't pull it faster than about 4 RPS and it would probably be inconsistent at that speed because of the fill rate. But that could be fixed by a higher flow rate air source or maybe a on board secondary chamber that holds some air for the refill. |
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| lilazndogg940 |
| Posted: 09/27/2008 21:32 PM Post subject: Re: Semi Auto |
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Private
Joined: 27 Sep 2008
Posts: 1
6.51 Spud Bux
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| Hey so how does the piston valve body pop back. does it pop back because the pressure is realeased behind it or wat i dont get how it does it |
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| clide |
| Posted: 09/28/2008 17:43 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
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| SEAKING9006 |
| Posted: 09/29/2008 20:24 PM Post subject: |
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Lieutenant Colonel
Joined: 23 Jun 2008
Posts: 407
647.49 Spud Bux
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| I apologize for bumping, but I'd love a video, current link is broken. |
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| clide |
| Posted: 09/29/2008 21:02 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
Posts: 721
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| FordGtMan |
| Posted: 09/29/2008 21:06 PM Post subject: |
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1st Lieutenant
Joined: 25 Oct 2007
Posts: 279
254.34 Spud Bux
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Wow, impressive video. Too bad all those damned idiots on youtube think that the whole deal was a real paintball gun as the gun wasn't showed.  |
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